Method and means of making paper



I @inn "115 QQ QSSIZO W. S. CRNELL ,Y

METHOD AND MEANS @MAKING PAPER 4 sheets-smet 1 Filed August 10,' 192?.

n 51A/vento@ June "152.1926, '1,'5895129 W. S. CRANDELL METHOD AND MEANS OF MAKING PAPER K 4 sheeis-sheet 2 Filed August-10, 1922 A' :mmm n June 15 1926.

LSQ W. S. CRANDELL.-

METHOD AND MEANS OF MAKING PAPR4 Filed Augusf. l0, 1922 June 15 1926D ,589,l20 w. s. cRAND-:LL f METHOD AND MEANS OF' MAKING PAPER Filed August lO, 1922 4 Sheets-Sheet 4 I being that water does not sey of mold heretofore used, involving ns it (loes the use of a shaft, collars, spiders and transverse leurs soldered or otherwise astened to the spiders, is expensive in its assemblage andelso renders it dicult to maintain n true forming surface; the result pees through from the outer surluce to its interior .in the proper manner and that the structure becomes clogged by particles or' stock iinproperlg;7 edhering to and buiiding up on the surface of said mold, with the result that a, teer or oth cr unevenness or inequalities is produced in the peper. That phase of the invention which. relates to the cylinder incid consists primarily in the provision of the venes aforesaid, and these venes may be attached to the structure in any suitable manner and li :my suitable means. Preferebiy, however, the cylindrical structure is en integrel member capable of admitting the Water from its exterior to its interior in the proper manner, arranged thatJ the sci-called undenfece forms e part et the cylinder structure itself, the shaft, the numerous rings or collars and the s'. ders being omitted.

Either features wili appear es, the speciiietion proceeds.

the accompanying drawings the invention is shown in severel concrete and preferred forms in which:

Fig. l is a. side elevation, with parts loi-ouen away and in section, ot 1i machine embodying the invention.

Fig. 2 is a top plan View of the parts shown in Fig. 1

Fig. 3 is e verticei sectional View on the plane of line 3-3 of Fig. l.

Fig. fi is e. frugmentery side elevation, with parts broken away and in section, of that side of the machine which is opposite to the one shown in Fig. i.

Fig. 5 is e plan View of the parts shown in Fig. 4.

Fig. 6 is un enlarged fragmentary sectional detail View of the upper right hnnd corncr or' the cylinder mold shown in Fig.

'iiig. 'i' is un enlarged sectional View through the cylinder inold and adajcent parts on the pinne of line 7-7 of Fig. 2. Fig. 8 is e View somewhat similar with Fig. l, but showing n modified construction. l indicates e. stationary tube having an opening 2 in n part of thc upper portion of its surface and suitably supported in end bearings S. Surrounding tube l is n mold cylinder 4; mounted to rotate with respect to4 said tube. vSuid mold cylinder muy be mounted in :my .suitable manner, but preferably hends thereof are supported on four rollers G mounted in hearings 7 of an antifr'iction character such as bell or roller bearings.- Rotation is imparted to cylinder vet il?.

the structure being so,

,may he attached an or exhaust mold in any sniteble manner, hut prefere'- bly n couch roll 8 having a. felt 9 is ernpioyed -whicli's'erves not only to i'rietionally drive the mold cylinderzhut nico' to carry of? the web of peper, It-Wiii iis'observ'ed, especially from Figs. i. and 7:, that the mold cylinder rotates in e dry path, that is it. is not immersed in the stock continued in i' he of suitehie construe n is provided with e. conduit il that. beneath the mold cylinder. audits supporting means es shown in F1" 3. l and 7 und terminates et, the other side of the seid incid and cornes in with the forming ice ci seid in adieu 'te op..

Or, r tation ci' the parte is revers; c `e construction shown in Fig. 8 muy he ernployed and conduit lj.a tney extend directly to the fern/ring surface of the incid Without passing beneath the In the letter cese it will' 'be understood that the opening in the surface o5? the stationery tube must likewise he reversed and must be appropriately ieeeted with respect to the terminus ci conduit llc. is in communication with vat l0 hy any suit-able ineens such es pipe 12, in which pipe'is interposed e pump 13 driven by suitable ineens, net shown. @ist .i9 is provided with :i horizontel partition or table le and ipe l2 enters vat l0 et a. pei-ni; below seid tebie. Tube l is also preerebl connected to' an sir exhaust pipe l5 totfhic shown'. The mold cylinder is prorided with cnt-offs or venes 16 extending inwardly' from the eriphery of said mold to e, point .adjacent t' e stationery tube, end these venes nre preferably nonrediei wit-ii respect to the cylinder mold.

It 4will new he understood, circultion being estehiislfied from 'the rat to the mold und beck agrein, that liquid stock Wiil dow, as indicated by the arrows, through conduit 1l and against. the forming surface of the mold es it rotates pest the terminal po' 'it ot' seid eenduit, end that the surplus 'eter will pass through the compartments. formed by the venes of the cylinder mold, through opening 2 in thevstationery tube, und through pipe l2 end pump 13 heck in the Vat. 'it will he apparent that, es n vane moves upwardly past the Stationery tube l llo izo

' portion'of the mold onl "which the stoclrjniay dry betorethe couch roll is reaclied,'.and to assist the drying process an aireirliaust as previously described may bev used. 'lf a line is rawn between the centers ofthe tube and of. the lcouch roll it will'be seen that opening' 2 terminates short of. the point Where this line asses through the circumference of the tu e, with the result that the suction on the paper web stops betere the tangential point of the mold and the couch roll is reached. and the paper will therefore pass readily around the vcouch roll with the' felt. 1t will also be understood that the stationary tube is not completely lilled with water.v

Comparing this with the method and construction used in the prior art it will be seen that thereis no outward pressure of Water to be balanced, rst because tube l is not completely filled with Water and secondly because the Water rests on the bottom of the tube and is therefore out of contact with the inner surface of the periphery of the mold as it is being carried oil.

To assist in drying the paper a slight vibration may be imparted to the mold. This may be done by any suitable means but in Figs. e and 5 I have shown a suitable expedient whereby this may be accom plished. As there shown a hammer 17 is pivoted at 18 and is urged toward the mold by means of spring 19. A ystar Wheel 20, or other contrivance, engages the other end 21 of the hammer and produces a rapidroclring of said hammer against the mold there" by imparting a vibration thereto. As a matter of convenience this'star Wheel may be rotated by means of a pulley 22 on the endet the pump shaft, belt 23 and pulley 24 on star i'ii/heel shaft 25. l desired, one end of the ltube may have a pane of translucent material 26 so that the internal behavior of the machine may be observed (Figs. l and 8).

The construction of the cylinder mold may. vary Widely, but l pause to remark here that the non-radial disposition oit the *Janes also tends to prevent outward pressure of the water, and this is particularly true if .the moldis used with 'a construction where the mold 'is immersed in avat, and l desire particularly to point out here that this construction of mold can be used with the standard construction of machine. In the particular form here disclosed the mold is characterized by a hollow cylindrical bodyportion 27 having formed integrally therewith end heads 5 and having also formed integrally therewith longitudinal bars or varies 16, these venes being arranged near lthe periphery of the cylindrical portion and extending between the heads from one end oi" the cylinder to the other. 28 indi- -i the oif concentric openings, il so desired, but `rdiich vare shown as being in the form et a spiral.

Preferably these'openings extend part into longitudinal vanos lil as indicated at 29 in order to facilitate the passage of Water through the surface of the cylinder and so as not to form un obstruction on which stock may lodge.A Surrounding the cylindrical portion is'they usuel "forming 'face indicated .here by coarse Wire mesh 30 and superim posed Wire mesh 3l. The underniiace is formed by the cylinder structure it lf.

will be evident that by this construction n the cylindrical mold is of unusually simple formation and can be machined true so vte present a better surface for supportingthe 'forming face of incid and permits more thorough washing by showers. The mold is the subject matter et an application, Ser. No. 573,901 filed July l0, 1922.

At the point Where the terminus of conduit 11 comes adjacent to the forming :face

of the mold cylinder suitable sealing means l are provided. 32 indicates a lower sealing;` means consisting' ot a longitudinally extending iiap of rubber or other suitable material secured to the bottom of the terminus of the conduit andhaving a wiping Contact with the forming`l sur-lace of the cylinder. 33 indicates side Sealing means which are also in the form oic flaps oli rubber and which are adjustable by means of slots 3ft and bolts 35 so that the Width ofthe paper Web produced may be regulated by adjusting the amount ci" endwise overlap.V

claim: y

1. A paper making machine including: e` rotatable cylinder mold, a stationary tube extending through said mold, and translucent end wall in said tube to admit of inspection or" its interior.

2. A paper making machine including: a rotatable mold cylinder, two rollers engag ing the lower surface of said cylinder at each end thereof and on which the cylinder rests, and means for rotating the cylinder, a stationary tube extending through said cylinder, and fixed bearings at the ends thereof to support the tube independently of the cylinder, and a translucent end Wall in said tube to admit of inspection or .its interior.

3. A paper making machine including: a stationary tube having an opening in s. part 0I" the upper portion of its surface, a rotatable lcylinder -mold surrounding said tube having a forming surface in spaced relation to the tube, and Varies carried by the mold, extending inwardly troni the forming surface thereof to the tube, a source of supply of liquid stock, a conduit between said sourceo supply and the forming surface of the mold, a connection between the lower part of the tube and the source ofsupply, and au air exhaust pipe connected adjacent tothe upper part of said tube. i

4. A paper makingjr machine including: a rotating cylinder niold having a forming surface., a couch roll above said cylinder mold, a stationary tube within said cylinder mold having an opening,r in its upper surface terminating short of the point at which a line drawn between the center of the couch roll and the stationary tube intersects the circumference of the tube, and vanes extending inwardly from the forming surface ot' the mold forming partitions' therein, means for supplying liquid stock to the forming surface of the mold adjacent the lower part of the opening ot' the tube, a vat containing liquid stock to which said supply means are connected, a connection between the lower part of the stationary tube and said vat, and an air exhaust pipe connected to the upper part ol' said tube.

5. A paper making machine including: a cylinder mold rotating in a dry path, means for depositing liquid stock on the forming surface of said mold including a conduit terminating adjacent to the mold, flexible sealing means carried by saidconduit at the terminus thereof and adjacent the ends of the cylinder with which said cylinder mold adjusting the amount of overlap of said sealing means lengthwise of the cylinder to thereby regulate the Width of the web tos be produced.

G. A paper making machine including: cylinder mold, a hammer, and means to actuate said hammer to impart blows in rapid succession to said cylinder mold to facilitate dryingthe'paper.

Signed at Albany in the county of Albany and ,State of New York, this 31st day of JulyJ 192:2.

' WILLIS S. CRAN DELL.

has a wiping contact, and means for 

